<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <!-- 输入框 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList()">
              <el-button slot="append" icon="el-icon-search" @click="getGoodsList()"></el-button>
          </el-input>
        </el-col>
        <!-- 添加商品按钮 -->
        <el-col :span="4">
          <el-button type="primary" @click="goAddGoods">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区域 -->
      <el-table :data="goodsList" stripe border>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price"  width="110px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="110px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="150px">
          <template slot-scope="scope">
            <!-- 过滤器 -->
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeGoods(scope.row.goods_id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页功能 -->
      <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[5,10,15,20]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
          </el-pagination>

    </el-card>


  </div>
</template>

<script>
  export default{
    created(){
      this.getGoodsList()
    },
    data(){
      return{
        //查询参数对象
        queryInfo:{
          query:'',
          pagenum:1,
          pagesize:5
        },
        // 商品列表
        goodsList:[],
        //总数据条数
        total:0
      }
    },
    methods:{
      async getGoodsList(){
        const {data : res } = await this.$http.get("goods",{params : this.queryInfo})
        if(res.meta.status !== 200) return this.$message.error(res.meta.msg)

        // console.log(res);
        this.goodsList = res.data.goods
        this.total = res.data.total
      },
      //每页的条数
      handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
      },
      //分页的页码
      handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
      },
      //删除商品
      async removeGoods(id){
        const confirmRes = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
                  confirmButtonText: '确定',
                  cancelButtonText: '取消',
                  type: 'warning'
           }).catch(err => err)
        // console.log(confirmRes);
        if(confirmRes !== 'confirm') return this.$message.info("已经取消删除")

        const {data: res } = await this.$http.delete(`goods/${id}`)
        if(res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.getGoodsList()
        this.$message.success(res.meta.msg)
      },
      //添加商品，跳转对应路由
      goAddGoods(){
        this.$router.push('/goods/add')
      }
    }


  }
</script>

<style lang="less" scoped>

</style>
